A:
Positive:
1 x 393076923 x 17090331 x 12679937 x 106237149 x 26381713 x 5513851 x 46191147 x 3427
Negative:
-1 x -3930769-23 x -170903-31 x -126799-37 x -106237-149 x -26381-713 x -5513-851 x -4619-1147 x -3427
Unfortunately, there's not simple formula to identifying all of the factors of a number and it can be a tedious process when trying to identify the divisors of larger numbers. To find the factor combinations of the number 3,930,769, it is easier to work with a table - it's called factoring from the outside in.
We start by creating a table and writing 1 on the left side and then the number we're trying to find the factors for on the right side in a table. Then, below that, write the numbers as a negative as well.
| 1 | 3,930,769 | |
| -1 | -3,930,769 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 3,930,769.
Example:
1 x 3,930,769 = 3,930,769
and
-1 x -3,930,769 = 3,930,769
Notice both answers equal 3,930,769
With that explanation out of the way, let's continue. Next, we take the number 3,930,769 and divide it by 2:
3,930,769 ÷ 2 = 1,965,384.5
If the quotient is a whole number, then 2 and 1,965,384.5 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.
Here is what our table should look like at this step:
| 1 | 3,930,769 | |
| -1 | -3,930,769 |
Now, we try dividing 3,930,769 by 3:
3,930,769 ÷ 3 = 1,310,256.3333
If the quotient is a whole number, then 3 and 1,310,256.3333 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.
Here is what our table should look like at this step:
| 1 | 3,930,769 | |
| -1 | -3,930,769 |
Let's try dividing by 4:
3,930,769 ÷ 4 = 982,692.25
If the quotient is a whole number, then 4 and 982,692.25 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.
Here is what our table should look like at this step:
| 1 | 3,930,769 | |
| -1 | 3,930,769 |
If you did it right, you will end up with this table:
| 1 | 23 | 31 | 37 | 149 | 713 | 851 | 1,147 | 3,427 | 4,619 | 5,513 | 26,381 | 106,237 | 126,799 | 170,903 | 3,930,769 |
| -1 | -23 | -31 | -37 | -149 | -713 | -851 | -1,147 | -3,427 | -4,619 | -5,513 | -26,381 | -106,237 | -126,799 | -170,903 | -3,930,769 |
Here are some more numbers to try:
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